Power stability, linewidth, beam quality
MSL-FN-721721 nm red CW laser
721 nmThe MSL-FN-721 is a 721 nm continuous-wave solid-state laser. Light is amplified in a solid gain medium inside an optical resonator. The resonator feeds light back through that medium to build the laser beam. The pump arrangement and cooling determine how energy is supplied and waste heat is removed. Single-longitudinal-mode operation selects one resonator frequency. Linewidth describes the spread around that frequency, while frequency drift describes how its center moves over time. This distinction matters when matching the source to a narrow resonance or an interferometer.
Specifications
MSL-FN-721
24 specification rows
| Output / average power | 1~300 mW |
|---|---|
| Beam / notes | Laser |
| Operating mode | CW |
| Transverse mode | TEM00 |
| Longitudinal mode | Single |
| Spectral line width (nm) | <1MHz |
| Noise of amplitude (rms, 20Hz-20MHz) | <1%, <0.5% |
| Warm-up time (minutes) | <10 |
| Pointing stability over temperature (urad/°C) | <8 |
| Frequency shift (MHz) (over ±2°C and 8hrs) (optional) | <±200 |
| Operating temperature (°C) | 10-35 |
| Power supply (100-240VAC) | PSU-H-FDA |
| Expected lifetime (hours) | >10000 |
| Wavelength (nm) | 721±1 |
| Power stability (rms, 4 hours ±3°C) | <3%, <2%, <1% |
| Coherent length (m) | >50 |
| M² | <1.2 |
| Beam diameter at the aperture (1/e2, mm) | <1.5 |
| Beam divergence, full angle (mrad) | <1.2 |
| Polarization ratio | >100:1, Vertical (Horizontal optional) |
| Pointing stability (urad) (over 2 hours after warm-up and ±3°C) | <50 |
| Frequency shift with temp (MHz/°C) (optional) | <200 |
| Beam height from base plate (mm) | 27.4 |
| Laser head consumption (W) | 15 (typical), <25 (40°C) |
What do you need?
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Model selection
Nearby series comparison
Compare MSL-FN-721 with the closest available models in the CW Lasers family.
| Selection parameter | MSL-FN-721 (current) | MSL-R-721 | MLL-FN-721 |
|---|---|---|---|
| Wavelength | 721 nm | 721 nm | 721 nm |
| Optical power / pulse energy | 1~300 mW | 300~1000 mW | 1~800 mW |
| Operating mode / pulse width | CW | CW | CW |
| Beam quality | <1.2 | <1.3 | <1.2 |
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